matlab getframe of single GUI panel

I would like to create a png of a single panel placed in a matlab-gui, created with 'guide'. However I am able to save a screenshot of the whole GUI via

    frame = getframe(specificGUIHandle);  % tag of GUI-figure
    imwrite(frame.cdata, 'wholeGUI.png');

But I would like to use

    frame = getframe(specificPanelHandle);  % tag of panel within GUI-figure
    imwrite(frame.cdata, 'panel.png');

Obviously this does not work. I would like to receive a .png which simply contains a screenshot of wholeGUI.png where the panel is located. I AM able to receive the coordinates where the panel is located with

    pos = getpixelposition(specificGUIHandle);

But I do not know how to use those informations...any ideas? Thanks in Advance!

Answer 1

[Walter Roberson]

The official solution for these kinds of things is to create a new figure and copyobj the panel into the new figure and then capture the new figure.

I know that export_fig uses that strategy for some operations; I do not recall at the moment whether it handles your particular case directly; if not then I am sure Yair would consider that as an enhancement.

[Pratched]

Thanks a lot and sorry for the late response. I kinda figured this out couple days after and forgot to close this issue.

Answer 2

[Yair Altman]

The ScreenCapture utility does exactly what you requested.